Battery module housing, battery module, battery pack and electrical equipment

Abstract

The embodiments of the present application provide a battery module housing, a battery module, a battery pack and an electrical device, and relate to the technical field of battery packs. The battery module housing comprises a mounting plate, at least two first fixing members and at least one second fixing member; the two first fixing members are relatively arranged on the mounting plate, and a receiving portion for receiving a battery cell is formed between the two first fixing members; the second fixing member cover is arranged on the receiving portion, and is respectively connected to the two first fixing members to press the battery cell onto the mounting plate, so that the battery module can be quickly assembled and disassembled by the first fixing member and the second fixing member, so that when a battery cell is damaged at a later stage, the corresponding battery cell can be directly replaced, which helps to reduce maintenance costs and improve maintenance efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of battery packs, and in particular to a battery module housing, a battery module, a battery pack and an electrical device. Background Art

[0002] Battery modules are key parts of electric vehicles, energy storage systems and other equipment that require a large number of batteries. Among them, battery modules generally contain multiple battery cells, which are arranged in the module shell, and the battery cells and the module shell are fixed as a whole by glue curing to prevent the battery cells from shifting during use.

[0003] Although the glue-dripping method of fixing the battery cell to the module shell can effectively fix the battery cell, when a battery cell fails in the battery module, the entire glue needs to be removed before the failed battery cell can be replaced, resulting in high maintenance costs and low efficiency. Summary of the invention

[0004] The embodiments of the present application provide a battery module housing, a battery module, a battery pack and an electrical device, so as to facilitate the replacement of damaged cells in the battery pack.

[0005] In a first aspect, an embodiment of the present application provides a battery module housing, comprising a mounting plate, at least two first fixing members, and at least one second fixing member;

[0006] The two first fixing members are arranged opposite to each other on the mounting plate, and a receiving portion for receiving the battery cell is formed between the two first fixing members; the second fixing member is covered on the receiving portion and is respectively connected to the two first fixing members to press the battery cell onto the mounting plate.

[0007] In some possible designs, the first fixing member includes at least one abutting portion and at least two limiting portions, one limiting portion is provided on each side of the abutting portion, the abutting portion is used to abut against the end of the battery cell, and the two limiting portions are used to contact the two side surfaces of the battery cell respectively.

[0008] In some possible designs, the first fixing member is provided with an inserting portion, and the inserting portion is used for inserting the positive electrode post or the negative electrode post of the battery cell.

[0009] In some possible designs, the first fixing member is rotatably connected to the mounting plate, and the plug-in portion is an avoidance hole.

[0010] In some possible designs, the first fixing member further includes a first connecting portion, the first connecting portion is rotatably connected to the mounting plate, and the first connecting portion at least partially extends between the battery cell and the mounting plate.

[0011] In some possible designs, the first fixing member is fixedly connected to the mounting plate, the plug-in portion is a avoidance groove, and the avoidance groove has an insertion port at one end facing away from the mounting plate, so that the positive pole or negative pole of the battery cell can enter or leave the avoidance groove through the insertion port.

[0012] In some possible designs, the first fixing member further includes a second connecting portion, and the second fixing member includes two third connecting portions, and the two third connecting portions are respectively connected to the second connecting portions of the two first fixing members.

[0013] In some possible designs, at least two connecting members are further included, the second connecting part is provided with a first connecting hole, the third connecting part is provided with a second connecting hole, and the connecting member passes through the first connecting hole and the second connecting hole to connect the second connecting part and the third connecting part.

[0014] In some possible designs, at least one of the first connecting hole and the second connecting hole is threadedly connected to the connecting member.

[0015] In some possible designs, a plurality of groups of the first fixing members are arranged side by side, each group includes two first fixing members arranged opposite to each other on the mounting plate, and each group of the first fixing members corresponds to one second fixing member;

[0016] The second connection portion and the third connection portion located on the same side of the mounting plate are sequentially connected through the same connection member.

[0017] In some possible designs, at least one filling piece is further included, and the filling piece is used to be arranged between two adjacent battery cells to separate the battery cells.

[0018] In some possible designs, the filler is a heat insulating layer or a heat conducting layer.

[0019] In a second aspect, an embodiment of the present application provides a battery module, comprising a plurality of battery cells and a battery module housing as described in any one of the first aspects.

[0020] In a third aspect, an embodiment of the present application provides a battery pack comprising at least one battery module as described in the second aspect.

[0021] In a fourth aspect, an embodiment of the present application provides an electrical device, comprising a battery pack as described in the third aspect.

[0022] In the battery module housing, battery module, battery pack and electrical equipment provided in the embodiments of the present application, the battery module housing includes a mounting plate, at least two first fixing members and at least one second fixing member, the two first fixing members are relatively arranged on the mounting plate, and a receiving portion is formed between the two first fixing members, the battery cell is located in the receiving portion, and the second fixing member is covered on the receiving portion and is respectively connected to the two first fixing members, so that the battery cell is pressed against the mounting plate to fix the battery cell. This not only makes it convenient to fix the battery cell, but also when a single battery cell fails, the first fixing member and the second fixing member can be directly separated, and the failed battery cell can be taken out for replacement. Compared with the traditional glue dripping fixing method, there is no need to clean the glue dripping, and the battery cell can be replaced quickly, and there is no need to replace the battery pack as a whole, which can effectively improve the maintenance efficiency of the battery pack while reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0024] Figure 1 A schematic diagram of the structure of the battery module housing and the battery cell before assembly provided in an embodiment of the present application;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure after the battery module shell and battery cell are assembled;

[0026] Figure 3 for Figure 1 A schematic structural diagram of the battery housing module and the battery cell after assembly from another perspective;

[0027] Figure 4 for Figure 1 A schematic structural diagram of a first fixing member in a battery module housing from a first perspective;

[0028] Figure 5 for Figure 4 A schematic structural diagram of the first fixing member from a second viewing angle;

[0029] Figure 6 for Figure 4 A schematic structural diagram of the first fixing member from a third viewing angle;

[0030] Figure 7 Another structural schematic diagram of a battery module housing provided in an embodiment of the present application;

[0031] Figure 8 for Figure 7 A schematic structural diagram of a first fixing member of a battery module housing;

[0032] Fig. 9A schematic diagram of the structure of a filling piece in a battery module housing provided in an embodiment of the present application.

[0033] Reference numerals:

[0034] 100-battery cell; 110-positive electrode column; 120-negative electrode column;

[0035] 200-first fixing member; 210-abutting portion; 220-limiting portion; 230-first connecting portion; 240-avoidance hole; 250-first connecting hole; 260-avoidance groove;

[0036] 300 - second fixing member; 310 - second connecting hole;

[0037] 400-Mounting plate;

[0038] 500-filler pieces.

[0039] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0041] In order to facilitate understanding of the technical solution of the present application, some terms involved in the present application are explained below:

[0042] Battery module: It generally includes a battery cell and a shell. The battery cell is fixed in the shell, and multiple battery cells are combined according to a certain circuit connection method to provide higher voltage or capacitance to meet the needs of various application scenarios;

[0043] Battery pack: A larger unit composed of multiple battery modules, which includes not only the battery modules, but also other auxiliary components such as the battery management system, cooling system, protective housing, connecting wiring harness, etc.

[0044] Lithium-ion battery technology is a green, efficient and recyclable energy storage and conversion technology. In the field of automotive electrification, most of the existing battery modules are composed of individual cells arranged and finally fixed as a whole by glue curing. This will not have side effects on the normal use of the battery module, but this method will cause the failure of a cell in the battery module, and then the entire battery module needs to be replaced. Even if the cell is disassembled, the entire glue needs to be removed before the replacement of a single cell can be completed, which has high maintenance costs and low maintenance efficiency.

[0045] In order to avoid the above-mentioned problems, the embodiments of the present application provide a battery module housing, a battery module, a battery pack and an electrical device. The battery cells in the battery module do not need to be fixed by glue dripping, but the battery cells are directly fixed to the mounting plate by a first fixing member and a second fixing member, thereby facilitating the disassembly and assembly of the battery module, effectively improving the efficiency of battery module maintenance, and helping to reduce maintenance costs.

[0046] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0047] See also Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a battery module housing, including a mounting plate 400 , at least two first fixing members 200 and at least one second fixing member 300 .

[0048] The two first fixing members 200 are relatively arranged on the mounting plate 400, that is, the two first fixing members 200 are respectively arranged at the two ends of the battery cell 100 to be fixed, and a receiving portion is formed between the two first fixing members 200, and the battery cell 100 is installed in the receiving portion. The second fixing member 300 is covered on the top of the receiving portion and is respectively connected to the first fixing members 200 at the two ends of the battery cell 100, so that the battery cell 100 is pressed onto the mounting plate 400 through the second fixing member 300.

[0049] Specifically, the first fixing member 200 limits the position of the battery cell 100 from both ends of the battery cell 100, while the second fixing member 300 and the mounting plate 400 limit the position of the battery cell 100 from above and below the battery cell 100 to prevent the battery cell 100 from shifting during use.

[0050] Among them, the first fixing members 200 are arranged in pairs, and the specific number of pairs can be determined according to the number of battery cells 100. At the same time, the first fixing members 200 can be one corresponding to each pair of first fixing members 200, or one corresponding to multiple pairs of first fixing members 200. As long as the battery cell 100 can be fixed from the top of the accommodating part, this embodiment does not limit it.

[0051] The battery module shell of this embodiment can fix the battery cell 100 on the battery module shell without the need for glue dripping, which is convenient for installing the battery cell 100 in the battery module shell and also convenient for removing the corresponding battery cell 100 from the battery module shell for replacement when a battery cell 100 is damaged, thereby effectively improving maintenance efficiency and reducing maintenance costs.

[0052] Specifically, when installing the battery cell 100, first place the battery cell 100 between the two first fixing members 200, and make the two ends of the battery cell 100 abut against the first fixing members 200, then cover the second fixing member 300 on the top of the accommodating portion, and connect the second fixing member 300 to the first fixing members 200 at the two ends of the two battery cells 100 respectively, so that the battery cell 100 can be fixed in the accommodating portion. When the battery cell 100 needs to be replaced, the first fixing member 200 and the second fixing member 300 are directly separated, and the corresponding battery cell 100 can be taken out from the accommodating portion, which is extremely convenient to use.

[0053] For some possible implementations, see Figure 4 , Figure 5 and Figure 6 As shown, the first fixing member 200 includes at least one abutting portion 210 and at least two limiting portions 220, and a limiting portion 220 is provided on each side of the abutting portion 210, and the abutting portion 210 is used to abut against the end of the battery cell 100, wherein the number of the abutting portions 210 corresponds to the battery cell 100, that is, if there is one battery cell 100, then one abutting portion 210 is correspondingly provided, and the two limiting portions 220 are used to contact with the two side surfaces of the battery cell 100 respectively.

[0054] Specifically, the abutment portion 210 and the limiting portions 220 on both sides thereof are combined to form a groove body, the width of which is the same as the thickness of the battery cell 100, the end of the battery cell 100 is in contact with the bottom of the groove body, i.e., the abutment portion 210, and the two sides of the battery cell 100 are in contact with the two side walls of the groove body, i.e., the limiting portions 220, thereby preventing collision between adjacent battery cells 100.

[0055] Exemplarily, the first fixing member 200 may be a U-shaped connecting plate, with limiting portions 220 extending from both sides of the connecting plate toward the battery cell 100 , and an abutting portion 210 in the middle abutting against the end of the battery cell 100 .

[0056] Of course, the first fixing member 200 may also have other structures, as long as it has the abutting portion 210 and the limiting portion 220 and can limit the position of a single battery cell 100 .

[0057] Furthermore, the first fixing member 200 is also provided with an inserting portion, and the inserting portion is used for inserting the positive electrode column 110 or the negative electrode column 120 of the power core 100 .

[0058] Specifically, the plug-in portion is disposed on the abutment portion 210 and its position corresponds to the positive electrode core and the negative electrode core of the battery cell 100 , thereby leading out the positive electrode core and the negative electrode core, making it easier to connect the positive electrode core and the negative electrode core with other components.

[0059] For some possible implementations, see Figure 1 , Figure 4 and Figure 6 As shown, the first fixing member 200 and the mounting plate 400 are rotatably connected, and the plug-in hole can be an avoidance hole 240 , and the avoidance hole 240 is a through hole penetrating the abutment portion 210 .

[0060] Specifically, the first fixing member 200 can be rotatably connected to the mounting plate 400 via a rotating shaft or a hinge, and the end of the first fixing member 200 away from the mounting plate 400 can rotate relative to the mounting plate 400 toward or away from the battery cell 100.

[0061] Before inserting the battery cell 100, first make the first fixing member 200 away from one end of the mounting plate 400 and rotate to the direction farthest from the battery cell 100, and then insert the battery cell 100 between the two first fixing members 200. In this process, the positive pole 110 and the negative pole 120 of the battery cell 100 are correspondingly inserted into the avoidance hole 240. After the battery cell 100 is inserted into place, the abutting portion 210 is completely attached to the two ends of the battery cell 100, and the limiting portion 220 is engaged on both sides of the battery cell 100. At this time, you only need to connect the second fixing member 300 with the first fixing member 200 to effectively limit the position of the battery cell 100.

[0062] In order to further improve the convenience of inserting the battery cell 100 between the two first fixing members 200, the first fixing member 200 also includes a first connecting portion 230, which is rotatably connected to the mounting plate 400 and at least partially extends between the battery cell 100 and the mounting plate 400.

[0063] Specifically, if Figure 4 and Figure 5As shown, a base plate can be added to the bottom of the connecting plate, the base plate is connected to the abutment portion 210, two side plates connected to the limiting portion 220 are added on both sides of the base plate, the side plates can be set to be triangular, and the connection between the base plate and the abutment portion 210 is rotatably connected to the mounting plate 400 through components such as a rotating shaft or a hinge.

[0064] When the battery cell 100 is inserted between the two first fixing members 200, the bottom of the battery cell 100 is first pressed on the bottom plate. At this time, as the battery cell 100 is pressed down, the first fixing member 200 will be gradually driven to rotate, so that the connecting plate gradually returns to a state perpendicular to the mounting plate 400. When the connecting plate is completely perpendicular to the mounting plate 400, the insertion of the battery cell 100 is completed, and the positive electrode column 110 and the negative electrode column 120 are also automatically inserted into the avoidance hole 240. At this time, under the action of the gravity of the battery cell 100, the first fixing member 200 is pressed on the mounting plate 400 and maintained in this state without the need to position it by hand, thereby freeing both hands and making it easier to insert the battery cell 100 and connect the second fixing member 300 and the first fixing member 200.

[0065] In some possible implementations, such as Figure 7 and Figure 8 As shown, the first fixing member 200 and the mounting plate 400 are fixedly connected, and the plug-in portion is an avoidance groove 260. Of course, the avoidance groove 260 penetrates the abutment portion 210, and the avoidance groove 260 has an insertion port at one end away from the mounting plate 400, and the positive electrode column 110 or the negative electrode column 120 of the battery cell 100 can enter or leave the avoidance groove 260 through the insertion port.

[0066] When in use, the positive electrode post 110 and the negative electrode post 120 of the battery cell 100 are directly placed at a position opposite to the insertion port, and then the battery cell 100 is moved downward, and the positive electrode post 110 and the negative electrode post 120 can be inserted into the avoidance groove 260. The battery cell 100 is limited by the abutment portion 210 and the limiting portion 220. At this time, the second fixing member 300 can be directly installed on the first fixing member 200, which is extremely convenient to operate.

[0067] For some possible implementations, see Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the first fixing member 200 further includes a second connection portion, and the second fixing member 300 includes two third connection portions, and the two third connection portions are respectively connected to the second connection portions of the two first fixing members 200 correspondingly.

[0068] Exemplarily, the second fixing member 300 can be a limiting plate, so that the connecting plate extends away from one end of the mounting plate 400 to above the battery cell 100 to form a second connecting portion, and the two ends of the limiting plate extend respectively to between the second connecting portion and the two sides corresponding to the limiting portion 220 to form a third connecting portion. At this time, the second connecting portion and the third connecting portion can be connected by common connection methods such as clamping, welding, and bolting.

[0069] Exemplarily, the top of the connecting plate extends in the length direction of the battery cell 100 to form a second connecting portion, and the second connecting portion is located on the outside of the battery cell 100, and the end of the limiting plate also extends in the same direction to form a third connecting portion, and the bottom of the third connecting portion is fitted with the top of the second connecting portion. At this time, the connection can be directly made through components such as buckles, straps, and bolts.

[0070] Exemplarily, the connecting plate extends from one end of the mounting plate 400 to above the battery cell 100 to form a second connecting portion, and clamping portions are formed on both sides of the limiting plate. The clamping portions are respectively located on both sides of the battery cell 100, and the clamping portions extend to both sides of the connecting plate to form a third connecting portion. At this time, the third connecting portion is connected to the second connecting portion from both sides through common connection methods such as clamping, welding, and bolt connection.

[0071] It can be understood that the above method is only an example of the possible arrangement of the third connecting part and the second connecting part, and it is not a limitation. Any other arrangement method can be used as long as it can stably connect the first fixing member 200 and the second fixing member 300 through the third connecting part and the second connecting part. This embodiment does not limit it.

[0072] Furthermore, the battery module shell in this embodiment also includes at least two connecting parts, a first connecting hole 250 is provided on the second connecting part, and a second connecting hole 310 is provided on the third connecting part. The first connecting hole 250 and the second connecting hole 310 correspond to each other, and the connecting part passes through the first connecting hole 250 and the second connecting hole 310 to connect the third connecting part and the second connecting part, thereby facilitating the connection and disassembly of the first fixing part 200 and the second fixing part 300.

[0073] Exemplarily, the connecting member can be a combination of a connecting rod and a nut, with a plug provided at one end of the connecting rod and a thread provided at the other end, and the nut being threadedly connected to the connecting rod. After the connecting rod passes through the first connecting hole 250 and the second connecting hole 310, the plug abuts against the end of the third connecting part or the second connecting part, and the nut is screwed onto the connecting rod and abuts against the other end of the third connecting part or the second connecting part, thereby realizing the connection between the third connecting part and the second connecting part.

[0074] Exemplarily, at least one of the first connecting hole 250 and the second connecting hole 310 is a threaded hole, and the connecting member may be a screw, or a rod that is at least partially threaded. After the connecting member is inserted into the first connecting hole 250 and the second connecting hole 310, the threaded holes in the first connecting hole 250 and the second connecting hole 310 may be threadedly connected to the connecting member, so that the connecting member cannot be displaced, thereby locking the second connecting part and the third connecting part through the connecting member.

[0075] It is understandable that the structure of the above-mentioned connecting member is only an example and not a limitation. Any other structure is acceptable as long as it can stably connect the first fixing member 200 and the second fixing member 300 through the connection between the connecting member and the first connecting hole 250 and the second connecting hole 310. This embodiment does not limit it.

[0076] For some possible implementations, see Figure 3 As shown, there are multiple groups of first fixing members 200, each group includes two first fixing members 200 relatively arranged on the mounting plate 400, and each group of first fixing members 200 corresponds to a second fixing member 300; the second connecting part and the third connecting part located on the same side of the mounting plate 400 are connected in sequence through the same connecting member.

[0077] Each group of first fixing members 200 may correspond to one battery cell 100 or may correspond to a plurality of battery cells 100 , which may be determined according to actual conditions.

[0078] Specifically, the first connecting holes 250 on the second connecting part of the first fixing member 200 located on the same side of the mounting plate 400 correspond to each other, that is, they are located on the same axis, and a second connecting hole 310 coaxial with the first connecting hole 250 is also provided on the third connecting part. After all the second fixing members 300 are placed in corresponding positions, all the battery cells 100 can be fixed by directly passing the connecting rod through all the first connecting holes 250 and the second connecting holes 310 in turn, thereby effectively improving the assembly efficiency of the battery module.

[0079] It is understandable that there may be multiple connectors, for example, one connector is provided for each fixing assembly, so that when a battery cell 100 is damaged, the damaged battery cell 100 can be replaced by directly removing the corresponding connector.

[0080] In some possible implementations, such as Figure 3 and Fig. 9 As shown, the battery module of this embodiment further includes a filling member 500 . The filling member 500 is disposed between two adjacent battery cells 100 , and can separate the two adjacent battery cells 100 .

[0081] Specifically, the shape of the filling member 500 is adapted to the shape of the blank area between two adjacent battery cells 100. If a plurality of battery cells 100 are fixed on a first fixing member 200, a plurality of abutting portions 210 need to be provided on the first fixing member 200, and a limiting portion 220 is also provided between adjacent abutting portions 210. In this case, the thickness of the filling member 500 may be the same as the thickness of the limiting portion 220.

[0082] It is understandable that the filler 500 can be directly inserted between two battery cells 100 after the battery cells 100 are installed, or can be pre-set between two adjacent abutment portions 210. The specific selection can be made according to the characteristics of the filler 500, and this embodiment does not limit it.

[0083] If one first fixing member 200 fixes one battery cell 100 , two limiting portions 220 are provided between adjacent battery cells 100 . In this case, the thickness of the filling member 500 is twice the thickness of the limiting portion 220 .

[0084] The filling piece 500 can fill the blank area between adjacent battery cells 100 , so that no blank area is generated between two battery cells 100 , thereby improving the fixing effect of the battery cells 100 .

[0085] Furthermore, the filling member 500 is a heat insulating layer or a heat conducting layer.

[0086] Specifically, the structure of the filler 500 can be set according to the use requirements of different battery cells 100. For example, for some battery cells 100 that require heat insulation, heat insulating materials such as heat insulating cotton and aerosol can be selected to make the heat insulating layer. For some battery cells 100 that require heat conduction, heat conductive materials can be selected to make the heat conductive layer.

[0087] Of course, correspondingly, the second fixing member 300 may also be made of a heat insulating material or a heat conductive material to further meet the use requirements of the battery cell 100 .

[0088] Such a configuration can provide functional protection for the battery cell 100 through the filling member 500 and the second fixing member 300, which helps to improve the performance of the battery module.

[0089] The embodiment of the present application further provides a battery module, which includes a plurality of battery cells 100 and the battery module housing in the above embodiment, wherein the plurality of battery cells 100 are sequentially arranged side by side on a mounting plate 400 and inserted into corresponding receiving portions.

[0090] It is understandable that the specific circuit connection method of each battery cell 100 in the battery module can be selected according to the actual application scenario, and this embodiment does not limit it here.

[0091] Among them, when the battery module is assembled, different battery cells 100 are first connected to their respective corresponding first fixing members 200, and the second fixing member 300 is placed on the top of the corresponding accommodating portion to contact the top of the battery cell 100, and then the first fixing member 200 and the second fixing member 300 are connected accordingly, so that the first fixing member 200, the second fixing member 300 and the mounting plate 400 are fixed as a whole, and then the multiple battery cells 100 form a fixed whole, so there is no need to drip glue as a whole. And when the battery module is used, if a single or partial battery cell 100 fails, it is only necessary to remove the second fixing member 300 from the first fixing member 200, and the single or partial battery cell 100 can be quickly disassembled, without the need to clean the glue dripping method to complete the disassembly and reorganization of the battery module, so that the maintenance efficiency is greatly improved. At the same time, the first fixing member 200 and the second fixing member 300 can effectively fix the battery cell 100, so that the battery module of this embodiment can achieve the same characteristics as the battery module produced by the existing glue dripping method.

[0092] An embodiment of the present application also provides a battery pack, which includes at least one battery module in the above embodiment. Multiple battery modules can be arranged in a certain manner and connected in circuits to expand capacitance and voltage to meet the usage requirements of different electrical equipment.

[0093] Of course, the battery module also includes other structures such as a battery management system and a cooling system, and the connection method between them and the battery module is well known to those skilled in the art, and will not be described in detail in this embodiment.

[0094] An embodiment of the present application also provides an electrical device that is powered by the battery pack in the above embodiment.

[0095] Among them, the electrical equipment in this embodiment can be electric vehicles, hybrid vehicles, energy storage systems, consumer electronic products, medical equipment, drones, power tools, backup power systems and other equipment. As long as they need to be powered by a battery pack, this embodiment does not limit them.

[0096] Finally, it should be noted that those skilled in the art will easily think of other embodiments of the present application after considering the specification and practicing the application content disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application, is not limited to the precise structure described above and shown in the drawings, and can be modified and changed in various ways without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A battery module housing, characterized in that: It comprises a mounting plate (400), a first fixing member (200) and a second fixing member (300); A plurality of groups of the first fixing members (200) are arranged side by side, each group of the first fixing members (200) comprises two first fixing members (200) arranged opposite to each other on the mounting plate (400), a receiving portion for receiving the battery cell (100) is formed between the two first fixing members (200); one second fixing member (300) is arranged corresponding to each group of the first fixing members (200), the second fixing member (300) is covered on the receiving portion and is respectively connected to the two first fixing members (200) so as to press the battery cell (100) onto the mounting plate (400); The first fixing member (200) comprises an abutting portion (210) and two limiting portions (220), wherein the two limiting portions (220) are arranged on two sides of the abutting portion (210) opposite to each other, the abutting portion (210) is used to abut against an end of the battery cell (100), and the two limiting portions (220) are used to contact two side surfaces of the battery cell (100) respectively; The first fixing member (200) further comprises a first connecting portion (230), the first connecting portion (230) being rotatably connected to the mounting plate (400), and the first connecting portion (230) at least partially extending between the battery core (100) and the mounting plate (400); The first fixing member (200) is provided with an inserting portion, and the inserting portion is used for inserting the positive electrode column (110) or the negative electrode column (120) of the battery cell (100); It also comprises at least one filling piece (500), wherein the filling piece (500) is used to fill the blank area between two adjacent battery cells (100) so as to separate the battery cells (100).

2. The battery module housing according to claim 1, characterized in that: The plug-in portion is an avoidance hole (240).

3. The battery module housing according to claim 1, characterized in that: The first fixing member (200) is fixedly connected to the mounting plate (400), the plug-in portion is a avoidance groove (260), and the avoidance groove (260) has an insertion opening at one end facing away from the mounting plate (400), so that the positive electrode column (110) or the negative electrode column (120) can enter or leave the avoidance groove (260) through the insertion opening.

4. The battery module housing according to claim 1, characterized in that: The first fixing member (200) also includes a second connecting portion, and the second fixing member (300) includes two third connecting portions, and the two third connecting portions are respectively connected to the second connecting portions of the two first fixing members (200) correspondingly.

5. The battery module housing according to claim 4, characterized in that: The invention also comprises at least two connecting members, wherein the second connecting part is provided with a first connecting hole (250), the third connecting part is provided with a second connecting hole (310), and the connecting member passes through the first connecting hole (250) and the second connecting hole (310) to connect the second connecting part and the third connecting part.

6. The battery module housing according to claim 5, characterized in that: At least one of the first connection hole (250) and the second connection hole (310) is threadedly connected to the connection member.

7. The battery module housing according to claim 5, characterized in that: The second connection portion and the third connection portion, which are located on the same side of the mounting plate (400), are connected in sequence through the same connection member.

8. The battery module housing according to any one of claims 1 to 7, characterized in that: The filling piece (500) is a heat insulating layer or a heat conducting layer.

9. A battery module, comprising a plurality of battery cells (100), characterized in that: It also includes a battery module shell as described in any one of claims 1-8.

10. A battery pack, characterized in that: Comprising at least one battery module as claimed in claim 9.

11. An electrical device, characterized in that: Comprising at least one battery pack as claimed in claim 10.

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